In 1944, she signed with Warner Bros. and changed her stage name to King (some of her early movies have her credited as "Georgette McKee", her stepfather's name).

[4] She co-starred in the mystery-horror film, The Beast with Five Fingers (1946), and a drama, The Man I Love (1947), both opposite Robert Alda.

King was originally cast to play Dr. Lilith Ritter in Nightmare Alley, a film noir directed by Edmund Goulding, but she chose instead the role of the sophisticated Marjorie Lundeen in Ride the Pink Horse (1947).

[5] In the 1950s, King had leading roles in the film noirs Dial 1119 and Southside 1-1000 (both 1950) and a science-fiction story, Red Planet Mars (1952).

She made four guest appearances on Perry Mason between 1959 and 1963, including the role of murderer Barbara Heywood in the 1959 episode, "The Case of the Bedeviled Doctor".

[9] On April 22, 2003, King died in hospice care while in residence at the Motion Picture and Television Country House and Hospital, in Woodland Hills, California.